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66 lines
1.1 KiB
66 lines
1.1 KiB
package nodes
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import (
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"sync"
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"time"
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"github.com/syndtr/goleveldb/leveldb"
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)
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type State = uint8
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const (
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Follower State = iota + 1
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Candidate
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Leader
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)
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type Node struct {
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Mu sync.Mutex
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// 当前节点id
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SelfId string
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// 记录的leader(不能用votedfor：投票的leader可能没有收到多数票)
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LeaderId string
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// 除当前节点外其他节点id
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Nodes []string
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// 当前节点状态
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State State
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// 任期
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CurrTerm int
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// 简单的kv存储
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Log []RaftLogEntry
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// leader用来标记新log, = log.len
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MaxLogId int
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// 已提交的index
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CommitIndex int
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// 最后应用（写到db）的index
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LastApplied int
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// 需要发送给每个节点的下一个索引
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NextIndex map[string]int
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// 已经发送给每个节点的最大索引
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MatchIndex map[string]int
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// 存kv（模拟状态机）
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Db *leveldb.DB
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// 持久化节点数据（currterm votedfor log）
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Storage *RaftStorage
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VotedFor string
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ElectionTimer *time.Timer
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// 通信方式
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Transport Transport
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// 已经处理过的客户端请求
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SeenRequests map[LogEntryCallId]bool
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}
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